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mauriciocalderonchavarria@outlook.com
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AM Modulation System

Year

2023

Tech & Technique

Arduino, Python, Octave

Description

Amplitude Modulation (AM) is a technique used to transmit information by varying the amplitude of a carrier wave. In this project, AM was applied to design a system capable of transmitting and independently recovering two different audio signals. A microphone input and a looped audio signal were modulated onto separate carriers, combined into a single signal, and transmitted. At the receiver side, two microcontrollers demodulated and filtered the signal to isolate and play each original audio stream on separate speakers. The system was first validated using Python simulations and later fully implemented with Arduino microcontrollers.

My Role

In that project, I:

  • Built the audio circuits.
  • Created Python simulations of AM modulation to verify the behavior of the real circuit.
  • Developed AM modulation on the microcontrollers used.

MAURICIO